Following a disturbance, the process by which species replace each other over time is called ____
Fill in the blank with the appropriate word.
succession
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Mollicutes, in the phylum Tenericutes, includes all bacteria that lack walls and do not synthesize peptidoglycan precursors.
Answer the following statement true (T) or false (F)
An evolutionary model of animal development indicates that _____
a. differentiation is positional within a zygote b. homeotic genes are not universal among animals c. homeotic genes are found only in fruit flies, where they are responsible for odd placement of appendages d. new genetic lines are produced less by modification than by unique mutation e. somites form as blocks of genes in cells randomly distributed throughout the body
With __________, an animal learns to associate an involuntary response to one stimulus with another stimulus. Fill in the blank(s) with the appropriate word(s)
Which of the following designates a normal human female?
a. XXY b. XY c. XX d. XYY e. XO